VizieR Online Data Catalog: Hamburg/RASS Cat. of optical ident. V3.0 (Zickgraf+, 2003)

This is the Version 3.0, issued May 6, 2003, 5341 X-ray sources from the ROSAT-BSC Version 2.0, issued January 5, 1998 now 4665 positions, (Bade et al., 1998, Cat. <J/A+AS/127/145>) Version 1.1, issued December 5, 1996 additional entries in the X-ray rows (flags and date of last change) Version 1.0, issued November 1, 1996

The catalogue can be used for scientific purposes if the above mentioned paper is referenced. For more detailed information about the identification code and the classification scheme for objective prism spectra the catalogue user is also referred to this paper.

(2 data files).